CCNA DC FAQ: The TCP/IP and OSI Networking Models Figure: Historical Progression: Proprietary Models to the Open TCP/IP Model Q1. Which of the following protocols are examples of TCP/IP transport layer protocols? (Choose two answers.) a. Ethernet b. HTTP c. IP d. UDP e. SMTP f. TCP Answer: D and F. Of the remaining answers, Ethernet defines both physical and data … [Read more...]